class ECD_GROUP_TABLE

(source code)

note
	description: "[
		A field group index table for Eco-DB arrayed lists conforming to ${ECD_ARRAYED_LIST [EL_STORABLE]}
		${EL_STORABLE} items are grouped according to the value of a specified agent of type ${FUNCTION [G, K]}
	]"

	author: "Finnian Reilly"
	copyright: "Copyright (c) 2001-2022 Finnian Reilly"
	contact: "finnian at eiffel hyphen loop dot com"

	license: "MIT license (See: en.wikipedia.org/wiki/MIT_License)"
	date: "2024-01-20 19:18:26 GMT (Saturday 20th January 2024)"
	revision: "5"

class
	ECD_GROUP_TABLE [G -> EL_STORABLE, K -> HASHABLE]

inherit
	EL_FUNCTION_GROUP_TABLE [G, K]
		rename
			list_extend as on_extend,
			list_replace as on_replace,
			list_delete as on_delete,
			has as has_group_key
		end

	ECD_INDEX [G]
		undefine
			copy, is_equal
		end

create
	make

feature -- Status query

	has (a_item: G): BOOLEAN
		do
			Result := has_key (item_key (a_item)) and then found_list.has (a_item)
		end

end